[Rorkimaru]

Originally Posted by cookiemonster

i don't think it is an act. he is a nice guy underneath. you can see how happy he gets whenever anyone says something nice about him, he so wants to be liked. but isn't used to it

Have to agree. You really see him light up and get emotional at any kind comment even though he tries to hide it.

Originally Posted by rusticgal

For someone who wants to be liked, he has a strange way of going about it

Coming where Mark is from and being as bookish as he must be for his level of intelligence he'll have built up a lot of walls to deal with slagging. As Cookiemonster said, he's used to being disliked so his defense is to pretend he doesn't want to be.